. >> good evening, i'm juju chang. for any adult out there wondering what their teens are doing online, the huge popularity of the young man you're about to meet may be deeply disturbing. his name is james dean and he's won the hearts of teenage girls across the country, many of whom link to him through twitter, facebook, or blogs. james dean, of course, is not his real name. it's his porn name, and it could soon be a household name. here's abc's cecilia vega with an update for our series "modern sex in america." >> sorry, i have an obsession with his nose. i think his nose is fantastic. >> just a ridiculous amount of love for him. >> james dean is like a guy you can meet in your neighborhood and just get to know. >> these young women could be gushing about any number of heartthrobs hanging from their bedroom walls. ryan gosling, justin bieber, justin timberlake. but they're not talking about a mainstream hollywood crush. they're talking about james dean, a porn star. >> he's the ryan gosling of porn. >> the porn indus